Oops! Access Ole Object Quick Start

Oops! Access Ole Object Quick Start

 

Oops! Access Ole Object Quick Start

Purpose:

操作accress的ole对象。并掌握测试驱动

Quick Start

新建一个名叫Oops_Access的项目java project。新建一个lib文件夹，导入以下类库

添加项目依赖性

在项目根目录加入一个demo.mdb文件（直接ctrl+C就可以进来了）

在demo.mdb数据库里面建立一张表，名字demo，表结构如下：

新建一个类，名叫DBController.java

import  java.io.ByteArrayInputStream;

import  java.sql.Connection;

import  java.sql.DriverManager;

import  java.sql.PreparedStatement;

import  java.sql.ResultSet;

import  java.sql.Statement;

public   class  DBController

{

        public   void  Insert(String value)

       {

               try

              {

                     Class.forName( " sun.jdbc.odbc.JdbcOdbcDriver " );

                     String database  =   " jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=demo.mdb " ;

                     Connection con  =  DriverManager.getConnection(database,  "" ,  "" );

                     String sql  =   " INSERT INTO DEMO (NAME,MEMO) VALUES(?,?) " ;

                     PreparedStatement pstm  =   null ;

                     pstm  =  con.prepareStatement(sql);

                     pstm.setString( 1 ,  " Dr.Oops " );

                     ByteArrayInputStream stream  =   new  ByteArrayInputStream(value

                                   .getBytes());

                     pstm.setBinaryStream( 2 , stream, stream.available());

                     pstm.execute();

                     pstm.close();

                     con.close();

              }

               catch  (Exception e)

              {

                     System.out.println( " Error:  "   +  e);

              }

       }

        public  String Select(String id)

       {

              String memo  =   null ;

               try

              {

                     Class.forName( " sun.jdbc.odbc.JdbcOdbcDriver " );

                     String database  =   " jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=demo.mdb " ;

                     Connection con  =  DriverManager.getConnection(database,  "" ,  "" );

                     Statement s  =  con.createStatement();

                     s.execute( " select ID,NAME,MEMO from DEMO where ID= "   +  id);

                     ResultSet rs  =  s.getResultSet();

                      if  (rs  !=   null )

                     {

                             while  (rs.next())

                            {

                                    byte [] image  =  rs.getBytes( 3 );

                                   memo  =   new  String(image,  " gb2312 " );

                            }

                     }

                     s.close();

                     con.close();

              }

               catch  (Exception e)

              {

                     System.out.println( " Error:  "   +  e);

              }

               return  memo;

       }

}

新建一个TestMe.java文件

import  junit.framework.TestCase;

public   class  TestMe  extends  TestCase

{

        public   void  test()

       {

              DBController controller  =   new  DBController();

              controller.Insert( " nice to meet you! " );

              System.out.println(controller.Select( " 1 " ));

       }

}

然后Run as JUnit